<p>Okay I will try to clarify. Instead of entering two search terms for start/end point, you can also drag both markers( from the upper left corner) on the map.<br>
See:<br>
<a href="https://camo.githubusercontent.com/4333d1f5bc42ad924145523b1059759942fbcdc5/687474703a2f2f692e696d6775722e636f6d2f62676d4f7867562e676966" target="_blank"><img src="https://camo.githubusercontent.com/4333d1f5bc42ad924145523b1059759942fbcdc5/687474703a2f2f692e696d6775722e636f6d2f62676d4f7867562e676966" alt="" data-canonical-src="http://i.imgur.com/bgmOxgV.gif" style="max-width:100%;"></a><br>
This is not visible to users. There is no visual difference between these markers to any other static image on the website.<br>
<a href="https://camo.githubusercontent.com/5a3021a41bd238f3b97e83f5525e401f14aad1c9/687474703a2f2f692e696d6775722e636f6d2f4f70644f3269332e676966" target="_blank"><img src="https://camo.githubusercontent.com/5a3021a41bd238f3b97e83f5525e401f14aad1c9/687474703a2f2f692e696d6775722e636f6d2f4f70644f3269332e676966" alt="" data-canonical-src="http://i.imgur.com/OpdO2i3.gif" style="max-width:100%;"></a></p>

<p>The case you mention with b) also doesn't make sense to me. Why change cursor on the blue line when there is no function or anything? It does the same as on the rest of the map.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href="https://github.com/openstreetmap/openstreetmap-website/issues/920#issuecomment-77711160">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/ABWnLZHOhsEcLyOYpVnVX9IOwl-yF77Rks5ny2XDgaJpZM4Do9gP.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
  <div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
    <link itemprop="url" href="https://github.com/openstreetmap/openstreetmap-website/issues/920#issuecomment-77711160"></link>
    <meta itemprop="name" content="View Issue"></meta>
  </div>
  <meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>